Amy places a set of number cards 1 through 30 in a bag. she draws out a card what is the probability that the number will have the digit 1 on it?
you need to count how many cards will have the digit one on it for example 1, 10, 11, 12 etc and it's however many cards out of 30. So final answer would be ?/30
answer has to be showm as a decimal
would that be .66
20/30=2/3=.66
To determine the probability that the drawn card will have the digit 1 on it, we need to find the number of favorable outcomes (number cards with the digit 1) and the number of possible outcomes (total number of cards).
First, let's find the number of favorable outcomes:
The digit 1 appears on the following numbers between 1 and 30: 1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 31.
So, there are 12 numbers that have the digit 1.
Next, let's find the number of possible outcomes:
Since Amy is drawing out one card, there are 30 possible cards in the bag.
Now, we can calculate the probability:
The probability is given by the ratio of favorable outcomes to possible outcomes.
Probability = Number of favorable outcomes / Number of possible outcomes
Probability = 12 / 30
Probability = 0.4
Therefore, the probability that the drawn card will have the digit 1 on it is 0.4 or 40%.